Tinh Tam Lake has a rectangular plane, with a circumference of nearly 1500m (354 feet). On the lake, there are three islands of Bong Lai, Phuong Tran and Doanh Chau, which are the focal points of the architecture in the lake. Bong Lai Island, in the south of the lake, in the middle there is Bong Doanh palace, 3 compartments 2 wings, match roof, Hong Luu Li roof tile. The palace is facing south, surrounded by a brick railing, in front of which there is Bong Doanh gate, then Bong Doanh bridge connecting the island with the southern lake shore. On the east side of Bong Doanh Palace, there is Thuy Ta Thanh Tam pavilion, facing east. On the west side of the palace, there is Trung Luyen pavilion, facing west. To the north is the Hong Cu gate and a bridge of the same name.
On Phuong Truong island, in the middle there is Nam Huan guard, facing south, 2 floors, Hoang Luu li roof tile. To the south is the Bich Tao Gate and Bich Tao Bridge. On the north side of the island, there is a Tinh Tam pavilion facing north. To the east is the Hao Nhien pavilion (changed from 1848 to Thien Nhien), facing east. On the west side, there is Duong Tinh terrace facing west. Between the two islands, there is Tu Dat communal house located between a system of roofing corridors with 44 pavilions, running into Bich Tao bridge in the south and Hong Cu bridge in the north.
In the middle of Tinh Tam Lake, Kim Oanh dyke connects from the east bank to the west bank. On the east side of the dike, there is Luc Lieu bridge, 3 compartments, tile roof. To the south, the dike is attached to a 56-compartments corridor, in the middle is the Bach Tan Bridge. On the south side of the bridge, there is Thanh Tuoc pavilion for the king's boat to stay. At the western end of the corridor, there is the Khuc Ta pavilion, connected with another pavilion, Khuc Ta Ha Phong through a small corridor built on the water. To the south of this barn is the island of Doanh Chau.
On the corners of Bong Lai Island, Phuong Truong has stacked stones to create penjings. Particularly, the island of Doanh Chau is shaped like a large island floating on the lake. Everywhere around the island, Bong Lai, Phuong Truong, Kim Oanh dyke and along the shore of the lake, there are all kinds of willows and strange flowers and grasses. In the lake, the only type of white lotus is grown.
The lake is separated from the outside by a round brick wall built quite high. On the four sides are four doors: Ha Huan in the south, Dong Hy in the north, Xuan Quang in the east and Thu Nguyet in the west...